Alpha Technologies AMP24 HP - Manual (Page 26)

Doc. #: 0260011-J0 Rev B 24
The recommendations in Table D are for reference only. A registered professional engineer
must review and approve or modify these recommendations in compliance with applicable
national and local electrical and building codes.
NOTE:
Table D — 12kVA and 6kVA, 120V Single Phase, 4i Shelf
Systems
Models
AMPS24-2-12-i2
#0260012-203/202
AMPS24-1-6-i1
#0260012-201
AC Input
AC Input Voltage 120V 120V
Full Load AC Input Current
(per phase)
106A 53A
AC Input poles & wiring 2w +G 2w +G
Wiring 1 pole 1 pole
SCCR 2100A 1600A
Recommended
AC input Breaker/fuse
(Note: 2)
150A 70A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC 1 6
CEC 50ºC 1/0 4
Total AC Output (Max)
12kVA/
9.6kW
6kVA/
4.8kW
AC Output
AC Output Voltage 120V 120V
AC Output poles & wiring 2w +G 2w +G
Wiring 1 pole 1 pole
AC Output Current (per Phase) 100A 50A
Installed Inverter Output
Circuit Breaker 100% rated
100A 70A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC 1 6
CEC 50ºC 1/0 4
AC Input & Output
connection terminals
Box lugs are rated for both Aluminum and Copper wire, #2/0 to #6
AWG. Fasten clamping screw to 120 in-lbs (14 N-m)
Note 1: Inverter AC Input & AC Output connections: Calculations based on full load and charging current, 0.8
derating with 5 current carrying conductors, (L1,L2,L3,2xN) due to possible high harmonic content load.
Temperature correction factor for 50C applied.
Note 2: Maximum AC Utility Service protection feeding the AMPS24 is 150A. Actual supply circuit breaker must
be sized appropriately for the supply wire used. Consult your local and national electrical codes. Double
neutral is strongly recommended for AC output wiring (and AC input wiring to the MBS) for 3Ф systems with
significant non-linear (ie rectified capacitive) loads. Since the AC input to systems without MBS is power
factor corrected, AC wiring to systems without MBS does not require double neutral wiring.